hi, i feel your pain. it's awful just to watch someone wither away and feel helpless.
i don't know if you are looking for advice but if so then try to get your friend to do the master cleanse, and my gut instinct tells me to recommend a parasite and Bowel Cleanse as well. tumors can be caused by parasites. i also read somewhere that chaparral is also good for shrinking tumors. the native americans used it for cancer and tumors, it tastes awful but i would give it a try!
love and light.